I'm an unlucky owner of and Acer 7720G laptop which, like many in its category, has receiver for a proprietary infrared remote control device (which I did not receive with my laptop!) .

Now my problem is that the receiver is detected as Microsoft eHome MCIR Keyboard, Microsoft eHome MCIR 109 Keyboard and Microsoft eHome Remote Control Keyboard keys.

My problem is that this driver has incompatibilities with some programs I use like for example DosBox. When these devices are installed, they cause DosBox to incorrectly detect some keyboard buttons. The workaround is to remove or disable the 3 hardware devices. Unfortunately, I the disable option is grayed out and when I delete them, they are reinstalled on next restart. Is there any way to hack windows in order to prevent their installation? I was thinking about locating the drivers these devices use, but they are buried somewhere in windows installation and I don't have enough experience to find them, so I'm asking you for help.

oh, and if the device isn't called circlass\irdevicev2 then go into device manager, select the eHome device, properties, then on the details tab change the dropdown to show Hardware Ids and use the value shown!
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Mark RobinsonJun 6 '10 at 13:21

Seems to be close, but program says C:\devcon\i386>devcon remove circlass\irdevicev2 CIRCLASS\IRDEVICEV2\1&79F5D87&0&PORT1 : Remove failed No devices removed. Also, I have amd64 version of windows and this appears to be available only for i386 and IA64. Newer version of devcon seems to e available in windows driver kit. I'm going to get 7.1.0 and try with that version.
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AndrejaKoJun 6 '10 at 13:44

I was right. windows driver kit 7.1.0 does contain amd64 version of DevCon and it seems to be working. Thanks!
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AndrejaKoJun 6 '10 at 13:52

Great, I never saw Windows-7 in the tags (doh!)
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Mark RobinsonJun 6 '10 at 16:00

Unfortunately, I have Insyde H2O UEFI on my laptop. Like many other laptops that use that particular piece of software, all access to UEFI is disabled and in emulated BIOS there are no useful options. I even had to modify UEFI image in order to enable Intel VT-x. I strongly recommend avoiding computers which use H2O!
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AndrejaKoJun 6 '10 at 18:41

Guys from notebookreview.com forums recommended that I try with system->advanced system settings->hardware->device installation settings and disable downloading drivers from windows update. Unfortunately, this does not help me. Also it may be significant that there is no new hardware detected dialog. Drivers are already installed once system starts.

take control and delete(i always back things up into a different folder) "C:\windows\system32\drivers\kbdhid.sys"

Move the "kbdhid.sys" from your desktop to "C:\windows\system32\drivers"

Now when you restart it installs the basic keyboard drivers into you HID keyboard divers. so the drivers will still show in your device manager, but will work as the stander driver. (PS. if you have a remote control for your PC, doing this will probably make it never work.)